Interface IDictionary<K, V>

A dictionary with keys of type K and values of type V. Equivalent to a finite partial map from K to V.

Inherited Members

ICollectionValue<KeyValuePair<K, V>>.ListenableEvents

ICollectionValue<KeyValuePair<K, V>>.ActiveEvents

ICollectionValue<KeyValuePair<K, V>>.CollectionChanged

ICollectionValue<KeyValuePair<K, V>>.CollectionCleared

ICollectionValue<KeyValuePair<K, V>>.ItemsAdded

ICollectionValue<KeyValuePair<K, V>>.ItemInserted

ICollectionValue<KeyValuePair<K, V>>.ItemsRemoved

ICollectionValue<KeyValuePair<K, V>>.ItemRemovedAt

ICollectionValue<KeyValuePair<K, V>>.IsEmpty

ICollectionValue<KeyValuePair<K, V>>.Count

ICollectionValue<KeyValuePair<K, V>>.CountSpeed

ICollectionValue<KeyValuePair<K, V>>.CopyTo(KeyValuePair<K, V>[], Int32)

ICollectionValue<KeyValuePair<K, V>>.ToArray()

ICollectionValue<KeyValuePair<K, V>>.Apply(Action<KeyValuePair<K, V>>)

ICollectionValue<KeyValuePair<K, V>>.Exists(Func<KeyValuePair<K, V>, Boolean>)

ICollectionValue<KeyValuePair<K, V>>.Find(Func<KeyValuePair<K, V>, Boolean>, KeyValuePair<K, V>)

ICollectionValue<KeyValuePair<K, V>>.All(Func<KeyValuePair<K, V>, Boolean>)

ICollectionValue<KeyValuePair<K, V>>.Choose()

ICollectionValue<KeyValuePair<K, V>>.Filter(Func<KeyValuePair<K, V>, Boolean>)

System.Collections.Generic.IEnumerable<Lucene.Net.Support.C5.KeyValuePair<K, V>>.GetEnumerator()

System.Collections.IEnumerable.GetEnumerator()

IShowable.Show(StringBuilder, Int32, IFormatProvider)

System.IFormattable.ToString(System.String, System.IFormatProvider)

Namespace: Lucene.Net.Support.C5

Assembly: Lucene.Net.dll

Syntax

public interface IDictionary<K, V> : ICollectionValue<KeyValuePair<K, V>>, IEnumerable<KeyValuePair<K, V>>, IEnumerable, IShowable, IFormattable

Type Parameters

Name	Description
K
V

Properties

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ContainsSpeed

The value is symbolic indicating the type of asymptotic complexity in terms of the size of this collection (worst-case or amortized as relevant).

See C5.Speed for the set of symbols.

Declaration

Speed ContainsSpeed { get; }

Property Value

Type	Description
Speed	A characterization of the speed of lookup operations ( `Contains()` etc.) of the implementation of this dictionary.

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EqualityComparer

The key equalityComparer.

Declaration

IEqualityComparer<K> EqualityComparer { get; }

Property Value

Type	Description
System.Collections.Generic.IEqualityComparer<K>

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Func

Declaration

Func<K, V> Func { get; }

Property Value

Type	Description
System.Func<K, V>	A delegate of type Func`2 defining the partial function from K to V give by the dictionary.

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IsReadOnly

Declaration

bool IsReadOnly { get; }

Property Value

Type	Description
System.Boolean	True if dictionary is read-only

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Item[K]

Indexer for dictionary.

Declaration

V this[K key] { get; set; }

Parameters

Type	Name	Description
K	key

Property Value

Type	Description
V	The value corresponding to the key

Exceptions

Type	Condition
NoSuchItemException	if no entry is found.

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Keys

Declaration

ICollectionValue<K> Keys { get; }

Property Value

Type	Description
ICollectionValue<K>	A collection containing all the keys of the dictionary

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Values

Declaration

ICollectionValue<V> Values { get; }

Property Value

Type	Description
ICollectionValue<V>	A collection containing all the values of the dictionary

Methods

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Add(K, V)

Add a new (key, value) pair (a mapping) to the dictionary.

Declaration

void Add(K key, V val)

Parameters

Type	Name	Description
K	key	Key to add
V	val	Value to add

Exceptions

Type	Condition
DuplicateNotAllowedException	if there already is an entry with the same key.

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AddAll<U, W>(IEnumerable<KeyValuePair<U, W>>)

Add the entries from a collection of C5.KeyValuePair`2 pairs to this dictionary.

Declaration

void AddAll<U, W>(IEnumerable<KeyValuePair<U, W>> entries)

    where U : K where W : V

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<KeyValuePair<U, W>>	entries

Type Parameters

Name	Description
U
W

Exceptions

Type	Condition
DuplicateNotAllowedException	If the input contains duplicate keys or a key already present in this dictionary.

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Check()

Check the integrity of the internal data structures of this dictionary. Only available in DEBUG builds???

Declaration

bool Check()

Returns

Type	Description
System.Boolean	True if check does not fail.

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Clear()

Remove all entries from the dictionary

Declaration

void Clear()

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Contains(K)

Check if there is an entry with a specified key

Declaration

bool Contains(K key)

Parameters

Type	Name	Description
K	key	The key to look for

Returns

Type	Description
System.Boolean	True if key was found

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ContainsAll<H>(IEnumerable<H>)

Check whether this collection contains all the values in another collection. If this collection has bag semantics (

AllowsDuplicates==true

) the check is made with respect to multiplicities, else multiplicities are not taken into account.

Declaration

bool ContainsAll<H>(IEnumerable<H> items)

    where H : K

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<H>	items	The

Returns

Type	Description
System.Boolean	True if all values in `items` is in this collection.

Type Parameters

Name	Description
H

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Find(ref K, out V)

Check if there is an entry with a specified key and report the corresponding value if found. This can be seen as a safe form of "val = this[key]".

Declaration

bool Find(ref K key, out V val)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	On exit, the value of the entry

Returns

Type	Description
System.Boolean	True if key was found

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FindOrAdd(K, ref V)

Look for a specific key in the dictionary. If found, report the corresponding value, else add an entry with the key and the supplied value.

Declaration

bool FindOrAdd(K key, ref V val)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	On entry the value to add if the key is not found. On exit the value found if any.

Returns

Type	Description
System.Boolean	True if key was found

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Remove(K)

Remove an entry with a given key from the dictionary

Declaration

bool Remove(K key)

Parameters

Type	Name	Description
K	key	The key of the entry to remove

Returns

Type	Description
System.Boolean	True if an entry was found (and removed)

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Remove(K, out V)

Remove an entry with a given key from the dictionary and report its value.

Declaration

bool Remove(K key, out V val)

Parameters

Type	Name	Description
K	key	The key of the entry to remove
V	val	On exit, the value of the removed entry

Returns

Type	Description
System.Boolean	True if an entry was found (and removed)

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Update(K, V)

Look for a specific key in the dictionary and if found replace the value with a new one. This can be seen as a non-adding version of "this[key] = val".

Declaration

bool Update(K key, V val)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	The new value

Returns

Type	Description
System.Boolean	True if key was found

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Update(K, V, out V)

Look for a specific key in the dictionary and if found replace the value with a new one. This can be seen as a non-adding version of "this[key] = val" reporting the old value.

Declaration

bool Update(K key, V val, out V oldval)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	The new value
V	oldval	The old value if any

Returns

Type	Description
System.Boolean	True if key was found

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UpdateOrAdd(K, V)

Update value in dictionary corresponding to key if found, else add new entry. More general than "this[key] = val;" by reporting if key was found.

Declaration

bool UpdateOrAdd(K key, V val)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	The value to add or replace with.

Returns

Type	Description
System.Boolean	True if key was found and value updated.

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UpdateOrAdd(K, V, out V)

Update value in dictionary corresponding to key if found, else add new entry. More general than "this[key] = val;" by reporting if key was found.

Declaration

bool UpdateOrAdd(K key, V val, out V oldval)

Parameters

Type	Name	Description
K	key	The key to look for
V	val	The value to add or replace with.
V	oldval	The old value if any

Returns

Type	Description
System.Boolean	True if key was found and value updated.

Extension Methods

EnumerableExtensions.InPairs<T, TOut>(IEnumerable<T>, Func<T, T, TOut>)

Number.IsNumber(Object)